Finding the Fourth Proportional to 386,891.87, 533,032.53 and 299,376.08
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Solution
The fourth proportional to 386,891.87, 533,032.53 and 299,376.08 is: 412,459.39
Step by Step Solution
- Step 1: Write the proportion equation
386,891.87 : 533,032.53 = 299,376.08 : x - Step 2: Convert to fraction form
386,891.87/533,032.53 = 299,376.08/x - Step 3: Cross multiply
386,891.87x = 533,032.53 × 299,376.08 - Step 4: Simplify right side
386,891.87x = 159,577,186,476.78 - Step 5: Solve for x
x = 159,577,186,476.78/386,891.87 - Step 6: Final answer
x = 412,459.39
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.